JNU 2012 Doubts

[anishagulati]

Hi
Can you please help me with questions 21, 29, 40, 44, 45, 55, 90, 91.
And explain the technique for 70-75 type of questions?


Thanks :)

[ViV]

Q.40

[ViV]

Q.90

[Shefali]

Viv ..i didnt get quest 40..pls explain

[Arushi :))]

40.
If A carried wheat , then B carried Rice.
Then C can carry wheat or rice.
implies , WRW and WRR are both possible.

If A carried rice, then C carried wheat.
B can carry wheat or rice, RWW and RRW are the possibilities.
RWW, But this is not possible because its given in iii that if B carries wheat C carries rice.
other option is RRW . This is possible.

If B, carried wheat , then C carried rice.
A can carry wheat or rice, WWR and RWR are the possibilities.
WWR is not possible because i says that if A carries wheat then B carries rice.
RWR is not possible, because ii says that If A carries rice then C carries wheat.
 
So, the possible options are,
WRW, WRR and RRW.
This means that B always carried rice.
Hence option b

[Shefali]

Thanxx Arushi :)